Improvement in gas-regulators



J. ADAMS.

Gas-Regulator.

N0, 167,488, n Patented Sept.7,1875.

N.PEIERS, PHOTD-UTHOGRAF'HER, WASHINGTON. n cA UNITED STATES PATENTDEEICE.

JOSEPH ADAMS, OF WASHINGTON, DISTRICT OF COLUMBIA.

IMPROVEMENT IN GAS-REGULATORS.

Specication forming Ypart of Letters Patent No. 167,488, dated September7, 1875; application filed April 27, 1875.

To all whom it may concern.-

Be it known that I, vJosEPE ADAMS, of Washington city, District ofColumbia, have invented a new and Improved Gas-Regulator; and I dohereby declare that'the following is a full, clear, and exactdescription ofthe same, reference being had to the accompanying drawingforming a part of this specification, in which- Figure l is a verticalsectional elevation; Fig. 2, a longitudinal section of the valve andstem; Fig. 3, a sectional detail of the valve.

This invention relates to certain improvements upon the gas-regulatorfor which Letters Patent No. 150,502 were granted May 5, 1874; and itconsists in the peculiar construction of the valve of the regulator, andalso in the peculiar construction and arrangement of thevalve-stem, incombination with the two hemispheres of the balloon.

In the drawing, A represents the outer casing of the regulator made intwo pieces, and fastened together by rivets or screws a, and containingbetween its edges the flexible diaphragm B. C is the discharge from theregulator connecting with the gas-pipes ofthe building, and D is thevalve-chamber which communicates with the meter. E is a screw-cap in thetop of the regulator, having a perforation that opens communication fromthe space above the diaphragm with the air. F is the balloon, which ismade of two hemispheres of .thin metal, having anges b b, that clamp thediaphragm, which latter, instead ot' being of an annular shape, is madea continuous surface, perforated at c to allowA the circulation of gasin the balloon. Instead of fastening the anges of the balloon withrivets, and allowing the valve-stem G to be at tached only to the lowerhemisphere ot' the -balloon, I make the said valve-stem separate fromthe hemisphere, place upon it a ange, cl, and extend it entirely throughthe balloon, and fasten the said hemisphere by a nut, H, which ts uponthe screw-threaded extremity of the stem, the hemispheres beingprovidedwith elastic washers or packings e e, which, when the nut is screwed uptightly, .prevent the leakage of gas from the balloon. I is the valve,having its hollow stem G perforated with holes f, which open into theballoon, and admit the passage of gas therethrough to impart buoyancy tothe same. g is the valveseat, which is contained within the lowerhemisphere of the casing, and is adjustable so as to regulate the sizeof the opening g for high or low pressure ofv gas. The valve I consistsof a funnel-shaped piece, h, which is placed upon the lower end ot' thestem G, having a shoulder, i, to receive it. Upon the outside of thispiece h is a covering, m, of leather or other elastic material, which isheld at one end between the apex of the piece hand the shoulder i, andat the other by an inner funnelshaped piece, j, which is held tightly tothe stem G and the piece h by a nut, la. By means of this arrangementthe valve is readily constructed and is made thorough in its fitting andoperation.

The operation of the governor is as follows: The valve being adjusted tothe particular elevation or pressure of the locality by weights upon theprojecting end of the stem,- and the adjustable valve-seat, the balloon,valve-stem, and diaphragm are in a state of sensitive equilibrium. Now,if the pressure is increased the diaphragm, balloon, and valve areraised, and the inlet being correspondingly closed the increased How ofgas is checked. If the pressure is diminished, the valve and itscoacting parts are depressed, the inlet correspondingly enlarged, andthe flow increased.

Having thus described my invention, what I claim as new isl. Thecombination, with the valve-stem, having shoulders i, of the pieces 71land j, the

exible covering m, and the nut lc, substam tially as and for the purposedescribed.

2. The hollow stem G, having perforation f and a iange, d, incombination with the nut H, and the two hemispheres of the balloon,substantially as and for the purpose specified.

The above spcciiication of my invention signed by me this 27th day ofApril, 1875.

' JOSEPH ADAMS.

Witnesses:

SoLoN C. KEMoN, GHAs. A. PETTIT.

